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Voxel-based multiple testing is widely used in neuroimaging data analysis. Traditional false discovery rate (FDR) control methods often ignore the spatial dependence among the voxel-based tests and thus suffer from substantial loss of…

机器学习 · 统计学 2024-05-06 Taehyo Kim , Hai Shu , Qiran Jia , Mony J. de Leon

We discuss some details regarding the method of smoothed residuals, which has recently been used to search for anisotropic signals in low-redshift distance measurements (Supernovae). In this short note we focus on some details regarding the…

宇宙学与河外天体物理 · 物理学 2014-05-08 Stephen Appleby , Arman Shafieloo

In high dimensional variable selection problems, statisticians often seek to design multiple testing procedures that control the False Discovery Rate (FDR), while concurrently identifying a greater number of relevant variables. Model-X…

统计理论 · 数学 2023-07-25 Taejoo Ahn , Licong Lin , Song Mei

Rejecting the null hypothesis in two-sample testing is a fundamental tool for scientific discovery. Yet, aside from concluding that two samples do not come from the same probability distribution, it is often of interest to characterize how…

统计理论 · 数学 2021-09-08 Boris Landa , Rihao Qu , Joseph Chang , Yuval Kluger

Magnetic Particle Imaging (MPI) is a tomographic imaging technique for determining the spatial distribution of superparamagnetic nanoparticles. Current MPI systems are capable of imaging iron masses over a wide dynamic range of more than…

We develop a novel method for detection of signals and reconstruction of images in the presence of random noise. The method uses results from percolation theory. We specifically address the problem of detection of multiple objects of…

应用统计 · 统计学 2013-12-02 Mikhail Langovoy , Michael Habeck , Bernhard Schölkopf

Edge Detection Methods Based on Differential Phase Congruency of Monogenic Image Abstract: Edge detection has been widely used in medical image processing and automatic diagnosis. Some novel edge detection algorithms,based on the monogenic…

经典分析与常微分方程 · 数学 2016-12-19 Yan Yang , Kit Ian Kou , Cuiming Zou

Stochastic resonance (SR), a phenomenon originally introduced in climate modeling, enhances signal detection by leveraging optimal noise levels within non-linear systems. Traditional SR techniques, mainly based on single-threshold…

信号处理 · 电气工程与系统科学 2025-10-27 Dixon Vimalajeewa , Ursula U. Muller , Brani Vidakovic

This paper addresses interferometric phase (InPhase) image denoising, i.e., the denoising of phase modulo-2p images from sinusoidal 2p-periodic and noisy observations. The wrapping discontinuities present in the InPhase images, which are to…

信号处理 · 电气工程与系统科学 2018-10-26 Joshin P. Krishnan , José M. Bioucas-Dias

The problem of phase-noise compensation for correlated phase noise in coded multichannel optical transmission is investigated. To that end, a simple multichannel phase-noise model is considered and the maximum a posteriori detector for this…

信息论 · 计算机科学 2019-10-15 Arni F. Alfredsson , Erik Agrell , Henk Wymeersch

In this article a topological sensitivity framework for far field detection of a diametrically small electromagnetic inclusion is established. The cases of single and multiple measurements of the electric far field scattering amplitude at a…

数值分析 · 数学 2017-03-10 Abdul Wahab , Tasawar Abbas , Naveed Ahmed , Qazi Muhammad Zaigham Zia

This paper investigates the classical statistical signal processing problem of detecting a signal in the presence of colored noise with an unknown covariance matrix. In particular, we consider a scenario where m-dimensional p possible…

信息论 · 计算机科学 2019-01-29 Lahiru D. Chamain , Prathapasinghe Dharmawansa , Saman Atapattu , Chintha Tellambura

This paper introduces a unified framework for the detection of a source with a sensor array in the context where the noise variance and the channel between the source and the sensors are unknown at the receiver. The Generalized Maximum…

概率论 · 数学 2010-06-16 Pascal Bianchi , Merouane Debbah , Mylène Maïda , Jamal Najim

In this paper, we address the normal mean inference problem, which involves testing multiple means of normal random variables with heteroscedastic variances. Most existing empirical Bayes methods for this setting are developed under…

统计方法学 · 统计学 2026-01-01 Kwangok Seo , Johan Lim , Kaiwen Wang , Dohwan Park , Shota Katayama , Xinlei Wang

The Benjamini-Hochberg (BH) procedure is a celebrated method for multiple testing with false discovery rate (FDR) control. In this paper, we consider large-scale distributed networks where each node possesses a large number of p-values and…

统计方法学 · 统计学 2022-12-20 Mehrdad Pournaderi , Yu Xiang

This paper proposes novel spectrum sensing algorithms for cognitive radio networks. By assuming known transmitter pulse shaping filter, synchronous and asynchronous receiver scenarios have been considered. For each of these scenarios, the…

最优化与控制 · 数学 2013-12-31 Tadilo Endeshaw Bogale , Luc Vandendorpe

We consider testing the equality of two high-dimensional covariance matrices by carrying out a multi-level thresholding procedure, which is designed to detect sparse and faint differences between the covariances. A novel U-statistic…

统计理论 · 数学 2019-10-30 Song Xi Chen , Bin Guo , Yumou Qiu

The estimation of functional networks through functional covariance and graphical models have recently attracted increasing attention in settings with high dimensional functional data, where the number of functional variables p is…

统计理论 · 数学 2024-09-05 Qin Fang , Qing Jiang , Xinghao Qiao

A linear Gaussian state-space smoothing algorithm is presented for estimation of derivatives from a sequence of noisy measurements. The algorithm uses numerically stable square-root formulas, can handle simultaneous independent measurements…

统计方法学 · 统计学 2016-10-17 Robert Piche

In this paper we consider the uniformity testing problem for high-dimensional discrete distributions (multinomials) under sparse alternatives. More precisely, we derive sharp detection thresholds for testing, based on $n$ samples, whether a…

统计理论 · 数学 2022-02-17 Bhaswar B. Bhattacharya , Rajarshi Mukherjee